基于Zynq平台PCIE高速数据接口的设计与实现

为有效利用PCIE接口的优异传输性能,便于外设与主机进行高速通信,该文基于Xilinx公司Zynq系列芯片,设计实现了多通道、高速度的PCIE接口。利用Zynq-7000系列芯片的FPGA+ARM架构,在PCIE2.0硬核的基础上设计了DMA硬核控制器、设备驱动和应用程序。经测试,在PCIE×1通道和单逻辑通道时,传输速度能达到3.36 Gbps,相比现有设计提升近20%。方案设计完备,具有较强扩展性,为设计基于PCIE接口的外接设备提供了重要参考,具有广阔应用前景。

Design and Implementation for High Speed Data Transfer Interface of PCI Express Based on Zynq Platform

In order to use the excellent transmission performance of peripheral component interconnect express (PCIE) interface to carry out high-speed communication between peripherals and the host effectively, a multi-channel and high-speed PCIE interface scheme is designed based on Zynq family chip of Xilinx. The DMA hardcore controller, device driver and application program are designed on the basis of PCI express 2.0 hardcore using the FPGA+ARM architecture of Zynq-7000 platform. Test results show that the transfer rate in our project almost can reach 3.3 Gbps in PCIE×1 lane and single logical channel, which increases about 20% compared with the traditional existing designs. Our scheme owns higher expansibility and wide application prospect, it is an important design reference for external equipment and PCIE interface.